<!DOCTYPE>
<html>
<head>

</head>
<body>


<form action="/login" method="post">
    <div>
    username<input name="username" value="admin">
    </div>
    <div>
    password<input name="password" value="admin">
    </div>
    <div>
        <button type="submit">login</button>
    </div>

</form>

</body>
</html>